I-Thunderbird Community Forum

How do I import *.ICS file in a reasonable amount of time. I have appointments in an ics file of less than 1 K in size, typically 700 - 800 bytes in size and they take HOURS to import and do not connect properly then to allow editing the appointment. This is from Baylor Scott and White, a major hospital system in Texas. If there is a problem with the imported file structure, please point me to the correct file structure. I like Thunderbird, but this part of the calendar is very frustrating. Clarence

For many years I have had a Thunderbird Calendar, and have a large number of Tasks set up in it. I have now decided it would be convenient to link it to my Google calendar, so that it also shows on my new Windows 11 machine and on my laptop. I've gone through the process described in the "Create new calendars" article, to link the calendars, and the Google calendar is now appearing in the Thunderbird calendar, but not vice versa. How do I get the Tasks in the Thunderbird calendar to appear in the Google calendar?

I am running Thunderbird 140.7.1esr and Firefox 147.03 on my Windows 10 machine, which I used to set up the link. My Windows 11 machine has the same Firefox build, but Thunderbird 147.0.1, and the Google calendar display is the same, but I haven't yet set up the Thunderbird calendar on the new machine.

I have this issue with my reminders for peoples' birthdays. I have an event on their birthday that comes from my Google contacts. That event has a reminder 1 week in advance. When the 1-week mark hits, I get an undismissable notification from Thunderbird. I can close the reminder window, but it'll show back up within a minute or two. I've tried removing and re-adding this calendar but it doesn't matter. When I look at the details for the event, I see that the Organizer field is Unknown Organizer <unknownorganizer@calendar.google.com>. My regular email address is listed as an attendee. This has been happening for at least the last several months, perhaps more than a year.

Two questions:

1- Is it possible to assign defaults for ICS import so that you don't have to go through the wizard?

The reason for this wish is question two...

2- Why does the "Next" button in the import wizard appear in a different place in each step? I have a whole bunch of separate ICS files to import due to a workflow issue, and importing them is like playing whack-a-mole. It'd be a huge improvement if the "Next" button could stay in a consistent place so that even if defaults can't be set up, you can just click-click-click in one place without having to dance around with the mouse :)

Hello! I have a calendar connected via DAVMail (Exchange Server 2019), everything works. But when I create an event in the calendar and start adding participants, autocomplete does not work (there is no list to choose from the address book).

I have an LDAP address book configured for Global Address List (GAL) exchange.

I also imported the address book to Cardbook via .vcf.

How do I set up autocomplete in the calendar? (When writing an email, autocomplete works)

I came into my home office this morning and started my Windows 10 machine from scratch (cold boot). I loaded Thunderbird and read and deleted some email. Then I went to enter a Task in the same calendar I always install Tasks in and it won't let me enter a new Task at all. The input field tells me to select a calendar that supports tasks. Well, I have! I open the Events and Messages menu option and the Enter Task command is grayed out. What the heck is going on? How can I get the ability to enter Tasks back?

I'm getting a little tired of dealing with all the issues in Thunderbird. I have spent hours trying to debug this with no success.

Thunderbird Version 152.0 Manjaro KDE Plasma 6.6.5 Kernel 6.18.36-1-MANJARO (64-bit) Graphics Platform Wayland ThinkPad T420

Successfully added monthly-repeating event for the first day of each month beginning at 00:00 hour with duration 0:00. These events correctly appear in another calendar (Google). This also shows there is no confusion between 'monthly' and '4-weekly'.

In Thunderbird's Calendar display, these events do not appear in day, week- and month-view modes, when the first of the month is the first day to be displayed. When the first of the month is positioned further into that view-mode's display then that repeating-event is correctly displayed.

The above happens in Thunderbird's Safe Mode with all add-ons disabled.

Many thanks PS. I am unable to report a bug in Bugzilla due to having lost login-credentials.

if I type a hyperlink into the Calendar description field it does not link to the url.

The mouse pointer does not change from a cursor to a pointy hand when I hover over it

I have also tried using the 'Link' button and that creates a blue/underlined url like a traditional clickable link but the result is the same as before.

Please help troubleshoot the problem, at the moment I'm having to copy and paste every link which becomes tedious when there are lots of links

Thanks

Clark

Nach Update auf Release Kanal kein Geburtstagskalender mehr und Geburtstage werden nicht im Kalender angezeigt. Geburtstage in Kontakten vorhanden. Benutze keine Cloud und kein Google. Wie werden Geburtstage wieder im Kalender angezeigt?

Bonjour, sur Thunderbird Version 128.8.1 esr 32 bit, Dans agenda, le bouton "+ Nouvel évènement" est grisé et inopérant. Mon agenda est "GMAIL" Comment le réactiver. Merci pour votre aide Cordialement

I have noticed that when a .ics file is not able to be manually imported into Thunderbird via the Events and Tasks there is a way to get it to import. Simply edit the filename of the .ics file to something very short (like less than 8 characters). I'm not sure why longer and more complex .ics filenames fail but shortening the filename almost always works.

Hello I searched the help articles and was surprised I could not find anything on this. I receive different calendar entry files, in this case a .VCS calendar file, from services I use to use as a calendar entry i.e. a reservation or other. I am able to import this file and create the calendar item in Google Calendar, however if I am on Thunderbird Calendar, I have been unable to discover a way to import. Am I missing this function? What are the steps needed to import a VCS file into Thunderbird Calendar? Thanks Mozilla community! -kozy

In the past week or so (since the holidays, perhaps), meeting invites I am getting are not converting the time correctly. I can make it work by manually editing the ics file and changing the first TZID from America/Chicago to US/Central I. The screen SHOWS the correct time (image atached) , but it imports as it the time was UTC

If the DTSTART and DTEND are set to US/Central it doesn't work. The issue is it would seem that the user is creating these with the webmail version of Rackspace email, which he has done for YEARS with no issue. Did something change as of recent that would make this format no longer work?

I have to export every one of his meeting invites (and several other people not using rackspace) and make that change at the top to make this import correctly.

BEGIN:VCALENDAR PRODID:-//Webmail//emailsrvr.com calendar//EN VERSION:2.0 CALSCALE:GREGORIAN METHOD:REQUEST BEGIN:VTIMEZONE TZID:US/Central BEGIN:DAYLIGHT TZNAME:CDT DTSTART:20260308T020000 TZOFFSETFROM:-0600 TZOFFSETTO:-0500 RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=2SU;BYMONTH=3 END:DAYLIGHT BEGIN:STANDARD TZNAME:CST DTSTART:20261101T020000 TZOFFSETFROM:-0500 TZOFFSETTO:-0600 RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=1SU;BYMONTH=11 END:STANDARD END:VTIMEZONE BEGIN:VEVENT UID:6c27a39585ce5041bc8d09d947515f48f3366ce5 DTSTART;TZID=America/Chicago:20260109T123000 DTEND;TZID=America/Chicago:20260109T130000 DTSTAMP:20260108T115204Z CREATED:20260108T115203Z LAST-MODIFIED:20260108T115203Z ORGANIZER:MAILTO:REDACTED ATTENDEE;PARTSTAT=WAITING;CN=Mike Chytracek;CUTYPE=INDIVIDUAL;ROLE=OPT-PART

ICIPANT;RSVP=TRUE;X-NUM-GUESTS=2:MAILTO:REDACTED

SUMMARY:Test Invite DESCRIPTION:Testing\, is this 12:30pm CLASS:PUBLIC STATUS:CONFIRMED TRANSP:OPAQUE END:VEVENT END:VCALENDAR

I can't find any reference to this and have stopped using one of my email accounts...and need to have outbound invites go through another one. I thought changing the "default" email address (which I've done successfully I believe) would do the trick but it doesn't. Thoughts?

I am trying to import a ics file into thunderbird. If I specify a local calendar as the destination calendar, the import works. However, if I specify a caldav-connected calendar as the destination, the import starts but never completes, and I always see an import status of 0%. I have tried importing into calendars from different caldav providers, but in all cases, the import fails. I would greatly appreciate your feedback. For me, this import is a convenient way to semi-automatically populate a web calendar.

I'm trying to create an event that start from time in PST, and end in China Standard Time. However, the date time selector doesn't seems to be aware with the timezone I selected and still prompt that I selecting wrong time.

I'm on the latest stable Thunderbird release, 138

Hey, I'd like to switch from Outlook to Thunderbird. I’ve already tried switching to Thunderbird once when I switched to Linux, but—now to my question: The most important feature for me is being able to use different colors in the calendar to mark appointments. I wasn’t able to get this to work on Linux, even with AI. Isn’t this option available? But if people are switching away from Outlook, surely a small feature like this shouldn’t be a problem?

Can anyone help me with this?

Hi, I want to print a list of selected events in the calendar, is that possible? Or, is there an extension that does it? And in the dream scenario I could export the selected lines to Excel.

//LasseT